Commentary Americans are divided about U.S. assistance to Ukraine. A legitimate concern for everyone, regardless of what “side” of the issue they’re on, is the long-term ramifications of alternative courses of military action or inaction. As an economist, I’m well aware of how impossible it is to predict the future with any degree of precision….

MOSCOW—Russia on Thursday launched weeklong war games involving forces from China and other nations in a show of growing defense cooperation between Moscow and Beijing, as they both face tensions with the United States. The maneuvers are also intended to demonstrate that Moscow has sufficient military might for massive drills even as its troops are…